Home / 44,146.99-66,131.71-20,421.23

Finding the Fourth Proportional to 44,146.99, 66,131.71 and 20,421.23

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Solution

The fourth proportional to 44,146.99, 66,131.71 and 20,421.23 is: 30,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,146.99 : 66,131.71 = 20,421.23 : x
  2. Step 2: Convert to fraction form
    44,146.99/66,131.71 = 20,421.23/x
  3. Step 3: Cross multiply
    44,146.99x = 66,131.71 × 20,421.23
  4. Step 4: Simplify right side
    44,146.99x = 1,350,490,860.20
  5. Step 5: Solve for x
    x = 1,350,490,860.20/44,146.99
  6. Step 6: Final answer
    x = 30,590.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.